{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949145,-0.314838,0.000000,0.000000,0.115684,-0.348755,0.930047,0.000000,-0.292547,0.881945,0.369580,0.000000,-1866759.256359,5627739.082238,2342522.549991,1],    "boundingVolume": {    "region": [1.891030,0.378522,1.891135,0.378592,0.000000,24.814897]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/3/16_9650.b3dm"}}}